Silo.



N0.735,4a5. PATBNTBD AUG14,1903.

\ J. PARRELL.

SILo.

APPLICATION FILED MAY 6, 1902.

NO MODEL. 2 SHEBTS-SHEET l,

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PATENTED AUG. 4, 1903.' J. FARRBLL.

SILO.

APPLIOATION FILED MAY 6. 1902.

2 SHEETS-SHEET a. 16 13 q' l Vw @tbowwl ne. 735,485.l

, UNITED STATES Patented August 4, 1903.

PATENT OFFICE.

JOHN EAEEELL,v oENEwToN, :NEWA JERSEY.

SILO.

SPECIFICATION forming part of Letters Patent N o. 735,485, dated August4, 190.3.

Application filed May 6, 1902.

T all whom, it may concern:

Be it known that I, JOHN FAREELL, a citi-` maintained between thedoor-sections and` door-jambs or guide-posts, as well as betweenadjacent door-sections.

In the accompanying drawings, Figure l is 'a front elevation of a siloembodying my improvements. Fig. 2 is a horizontal section taken throughthe doorway of the silo. Fig. 3 is a View showing the device forclamping adjacent door-sections together. Figs. 4 and 5 are detail viewsof said clamping devices.

Fig. 6 is an end view of a door-section with a movable guard attachedthereto, the latter being partly broken away; and Fig. 7 is a side viewof the same.

` Referring to the drawings, a. indicates the silo, comprising acylindrical wall 1, preferably made of suitably tongue-and-groovedstaves or boards, retained in position against internal pressure by asuitable number of metal hoops or bands 2, and having aroof 3,

provided with a hinged door 4. Guide-posts or jambs 5 and 6 are arrangedparallel with one another at either side of afdoorway 7, which extendsfrom top to bottom of the cylindrical wall of the silo. The ends 2fL and2b of each band are threaded and `extend through one of the guide-posts6, said ends being adjustably secured tothe post by nuts;

provided with beveled faces 5l and 6, respectively, at the inner partsof their adjacent Serial No. 106.195. (No model.)

sides, and said beveled faces are provided with longitudinal grooves 12,substantially @semicircular in cross-section, within which .are arrangedguide-ropes 13, said ropes be- ;ing suitably held within the grooves.These ropes, which are preferably braided and rendered waterproof, serveas guides for the sliding door-sections 14 and also serve the Vpurposeof packings between the door-sections and guide-posts.

The door consists of series of sections 14, `each having its lateraledges 15 beveled to ,correspond with the beveled faces: of theguide-posts or jambs and having semicircu- `lar groove 16extendinglongitudinallyof said `beveled faces. The door-sections areplaced `in position by sliding them down from the top 'of the doorway,the grooves 16 fitting around the exposed surfaces of the ropes andforming tongue-and-groove joints therewith. The door-sections are thuslocked against inward movement by the ropes, which form 1guides for thesections. Grooves 17 and 18 are also formed in the top and bottom,respectively,ofeach door-section, and a rope 19 is arranged in one ofsaid grooves. As shown in Figs. 6 and 7, the rope 19 is secured withinthe groove 17 at the top of a door-section and forms a tongue which isadapted to `fit within a groove 18 in the adjacent doorsection. Thepressure of the materialwithin the silo forces the door-sectionsoutward, compressing the ropes 13 within the grooves between theguide-posts and the door-sections, and thus preventing the circulationof air between the door-sections and posts. The adjacent door-sectionsare drawn firmly together by suitable clamping devices 20, thuscompressing the rope packings 19 within the grooves at the ends of thesections.. Each door-section is provided with a stud or projection 2land a clamping device 20, the clamping device being arranged to engagethe projection upon the adjacent door-section. As shown in the drawings,the clamping devices 20 are arranged near 'the lower edge of eachdoor-section and engage projections arranged near the upper edge of theadjacent sections. Each clamping device consists of a latch 22, having ahooked or turned-over end 23, which engages the catch or stud 2l,

and a lever 24, secured by a pivot 25 to the ICO door-section and havingan eccentric projection 26, which fits within a circular opening 27 inthe latch, the arrangement being such that when the handle is raisedfrom the horizontal position the latch will be lowered out of engagementwith the catch and when t'ne lever is turned into the horizontalposition the latch will be brought into engagement with the catch orprojection on the adjacent door-section,and the two sections will bedrawn firmly together, compressing the rope packing 19 and making apractically air-tight joint.

In practice when apart of the ensilage has been removed from the siloone or more of the uppermost door-sections may be removed, and the nextremaining section, such as t-he section 14d, is then slid upwardly onthe guideropes and secured to the part 11 of the uppermost band bysuitable means, such as the hooks 28. As fast as the material is removed-froin the silo thereafter the succeeding doorsections 14e lif, &c., maybe moved upward and suspended from the section 14 by connecting saidsections together with the clam ping devices 20. In the drawings thethree topmost sections have been removed and the sections 14d, 14e, 143,and 14g have been moved upwardly, leaving a space for. ingress andremoval of materialequal in height kto three door-sections between thesection 14g and the section 14h. When the ensilage is removed to thebottom of the section 14h, said section may then be moved upward andconnected tothe section 14g. A doorway is thus provided at all timesjust above the top of the contents of -the silo, and the door-sections,with the exception of the uppermost ones, will always remain in positionready to be replaced by simplyl unlocking and lowering them.

I In order to prevent injury to the rope packings 16 while removingmaterial from the silo or the grooves in case the packings are arrangedat the bottoms of the door-sections, a sheet-metal guard 29 is provided,as shown in Figs. 6 and 7, said guard consisting of a plate having acentral longitudinal rib 30, adapted to extend over the rope 19, andflanges 31, arranged to embrace the sides of the door-section. The guardis adapted to j be placed upon each door-section in succes- 1. In asilo, the combination with a building having a vertical doorway, ofposts at the sides of said doorway, said posts having beveled faces attheir inner sides, compressible guides extending longitudinally of andprojecting outwardly from said faces', and a series of door-sectionshaving beveled lateral edges and grooves in said edges adapted toreceive the projecting portions of the guides.

2. In a silo, the combination with a build'- ing having a verticaldoorway, of posts at the sides of said doorway, said posts havingbeveled faces at their inner sides and grooves extendinglongitudinallyof said faces, compressible guides within said grooves and projectingoutwardly beyond said faces, and a series of door-sections havingbeveled lateral edges and grooves in said edges adapted to receive theprojecting portions of the guides.

3. In a silo, the combination with a building having a vertical doorway,of posts at the sides of said doorway, said posts having beveled facesat their inner sides and grooves extending longitudinally of said faces,ropes within said grooves and projecting outwardly beyond said faces,and a series of door-sections having beveled lateral edges and groovesin said edges adapted to receive the projecting portions of the ropes.

4. In a silo, the combination with a buildn ing having a verticaldoorway, of guide-posts at the sides of said doorway, said posts havingbeveled faces at their inner sidesand grooves extending longitudinallyof said faces,compressible guides within said grooves projectingoutwardly beyond said faces, and

ed to receive the projecting portions of the.

guides, each section also havinga compressible packing Iextending alongone end and forming a tongue, and a groove extending along its oppositeend, and means for clamping said sections together.

5. In a silo, the combination with a building having a vertical doorway,of guide-posts at the sides of said doorway, said posts having beveledfaces at their inner sides and grooves extending longitudinally of saidfaces, ropes within said grooves projecting outwardly beyond said faces,and a series of door-sections each having beveled lateral edges andgrooves in said edges adapted to receive the projecting portions of theropes, each section also having a rope extending along one end andforming a tongue, and a groove extending along its opposite end,'andmeans for clamping said sections together.

6. In a silo, the combination with a building having a vertical doorway,of guides at the sides of said doorway and a door comprising a series ofdoor-sections movable longitudinally of the guideways, each sectionhaving a groove extending along one end and a compressible packingextending along the other end-and adapted to fit into the groove of anadjoining section.

7. In a silo, the combination with a building having a vertical doorwayof guides at either side of said doorway, a series of doorsectionsmovable vertically between the guides, means for holding an upperdoor-sec- ICO 'masse tion stationary between the guides, and devicesupon each door-section for fastening it to the adjacent sections.

8. In a silo, the combination with a build-A ing having a verticaldoorway, of a series of verticallymovable door-sections arranged acrossthe doorway, means for holding an upper doorsection stationary, andmeans for suspending one or more successive door-sections from saidupper section.

9. In a silo, a door comprising a vertical series of sections, and aremovable guard adapted tot over the upper ends of said sections.

l0. In a silo, the combination witha cylin-

